Telautographic transmission



` Jan.

1,615,015 A. KORN 4 TELAUTOGRAPHI C TRANSMI S SI 0N Filed March l, 1924 Z @l IMM 26 lllllk;

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PAT-ENT OFFICE.

ARTHUR Roan, or nnnLrN-CHARLOTTENBUBG, GERMANY.

TELAUTOGRAPHIC TRANSMISSION.'

Application led March 1, 1924, Serial No. 696,228.y and in Great Britain September 6, 1923.

vIn the method of telautographic transmisr sion, as commonly practised heretofore the handwriting, drawing or the like to be transmitted by means of the Bakeweli transmitter 5 is deposited by means of non-conducting `material upon a metal foil which is wound upon' a cyllnder and along which a pointed .metal feeler is made to move which, upon the rotation of said cylinder, describes a lo close helical line, ,.along the cylinder. @Virenever the pointed end engages with a conduct` ing portlon of the fgil an electric circuit is closed and a currt established, which is interrupted, when the metal point engages with" a non-conducting portion. The cur,-

rents are transmitted to the receiver by a telegraphic conduit, where they serve for the reconstruction of the picture.

In the invention about to be described the successively occurring current impulses of the Bakewell transmitter are utilized at the transmitting station for the automatic production, ofa typed telegram or f a telegraphic perforated strip from which at the receiving station the picture may be accordance with the closing ofthe circuit` occurring in the first, 2nd,' 3rd, 4th or fifth line or failing to occur a hole wasv punched out in the first. second, third, fourth or fifth line respectively upon a perforation -strip containing five lines, or a type correspondingl to this combination of five lines was printed. The telegram received at the reeeivingstation was writen down by means of a special type writing machine in which the letter types are replacedbv-'types corresponding i to the five-lines perforation strip; so that there would for instance correspond to the `following `combination of' holes the following form of types With this method it has, ohowever, been found that it is very difficult to cause the five metal points to feel along the transmitting foil at sufficiently narrow distances from each other.

In order to overcome this difficulty only one feeling pointer is employed in accordance with the present invention, five successive feeling operations being used for the production of a combination of holes or of a letter type.

The invention will be morefully described with reference to the accompanying drawing showing by Way of example, one form of embodiment ofthe principles of my in* vention. l v

As shown in the drawing, upon the metal cylinder 1 there is mounted a' metal foil upoinwhich the design is produced with nonc'onductng material; upon' the metal foil a feeling pointer -2 is adapted to move which feels along themetal foil inhelical lines similar to the stylus of a phonograph. For the production'of each combination of hole-s ofthe.registgringperforation strip five successively occurring feeling engagements have-to be performedwithin a certain small time in- 05 terval.

During the timein which-.these livey feeling engagements of'the pointer are being portion of the foil. l

`operation the relay 19 is excited, and so on contact with the ends of v.seven metallic springs 11, 12, 13, 14, 15, 16, 17. The contact piece 4 is electrically connected to the contact pieces 5to 10.

By means of the wheel 3 and the springsl 1l to 17 five polarized relays 18, 19, 20, 2-1, 22 are adapted to be operated, and in such` a mannerthat in the first-feeling operation the relay 18 is excited, provided the feeling `'pointer 2 makes contact with a comlucting- In the second feeling 1n succession.

f kUpon the commencement of each rotation of the wheel 3 all the relaysshould be restored to their position of rest. ith this point in view the battery 23 with the termi- `nals 24, 25 is substantially centrally subs divided, and a circuit is branched off at 26'; from the terminal 24 a line conduit 27 leads to a sliding contact 28 of the Bakewell cylinder 1, and when the feeling pointer is on a conductive portion of the foil a current 'i passes through said pointer 2 to the -spring 11. A conduit 29 leads from the terminal 25 to the spring 17, and from the pointer 26 a common line conduit 30 leads to the terminals of the windings of the relays 18 to 22, while from the other. terminals of the windings ofthe relays the conductors 31, 32, 33,

34 and 35 lead respectively to the springs.

12, 13, 14,. 15, 16. When the segment 51s moving past vthe springs the spring 17 is connected to 12, 13, 14, 15 and 16, and the relays are restored to the position of rest .by a current impulse of the battery portion 26, 25. If the segments 6 and 4 move past the springs 1l and 12 the relay 18 is operated upon vthe feeler 2 making Contact with the foil; relay 19 is operated, when the segments 7 and 4 move past the springs 11 and 13; relay 20 is operated by the movement of the segments 8 and 4 on the springs 11 and 14; relay 21 -is operated by the movementl of the segments 9 and 4 along the springs 11 and 15, and the relay 22 is operated 'by the movement of the segments 10 and 4 on the springs 11 and 16. Between the ends of the segments 4 and 5 a non-conducting sector of about one ninth of thecircular surface is in; serted. While this sector is moving past the springs the relays 18 to 22 remain in the position produced by the live feeling operations, and may be used in this position' for the punching of perforation strips or for reference' is'ma'de to the operation of the` Siemens rapid-telegraph with perforation of perforation strips with five lines or to the operation of the, Siemens translator with thc corresponding printing of letters. The new method may,-'however, also be used by a similar procedure for the operation of other rapid telegraphs and multiple telegraphs. If the production of perforated strips is intended this perforation (at each rotation of the member 3 one combination of holes) may be directly effected by means of tive perforating magnets in accordance with the adjustment of the relays 18 to 22; in Icase the printing of types or letters is intended it is necessary to add for the operation of the tive polarized relays 36, 37, 38, 39 and 40 of the printing apparatus of the Siemens rapid telegraph a. non-conducting wheel 41 with the imbedded conducting segments 42, 43, 44, 45 and 46 of which a segment 45 is electrically connected to 46, and segment 4,2 is connected to'44. The Wheel 41 rotates together with the wheel 3 in the direction of the arrow in such a manne-r that the free sector of wheel 3 passes over the ends of the springs 11 to.17, when the similar sector on the wheel 41 with the segments 42 to 46 passes over tlie live metallic springs 47, 48, 50 and 51. During this short time the relays 36 to 40 are influenced, while the relays 18 to 22 remain in their adjusted position. During the rest of the time the relays 36 to 40 remain in their adjusted position adapted for the printing of the letter corresponding' to the five feeling operations.

A conductor. 52 leads from the relay levers 53,54, 55, 56 and 57 of the relays 18 to.22 to each one terminal of each of the windings of the relays 36 to 40;.58, 59, 60, 61 and'62 are the resting contacts of the relays 18 to 22,

and 63, 64, 65, 66 and 67 indicate the workcommon terminals of the windings of relaysy 36 to 40 are connected to the spring 50 by a conductor 71. From contacts 58, 59, 60, 61, 62 a line conduit 72 leads to spring 51. j

Upon the sectors 42, 43, 44 of the wheel 41 moving past the ends of the springs 47, 48,- 49, 50 and 5l the relays 36 to40 are returned to their position of rest, and upon the sectors 45 and 46 of the wheel 41 moving across the ends o f springs 48 and 50 the/relays 36.to 40 are adjusted to operative position.

What I claim is-J:

1. Telautographic transmission means for hand writing, drawing, and the like,y comprising, a single' feelingpointer, a plurality of relays Lconnected yfor operation by' the inerente single feeling pointer, a partially conducting support over which the pointer is movable and containing the object to be transmitted,l

contacting means arranged to electricallyy connect the relays with 'the pointer, and means controlled by the relays for producing a record.

2. '.lelautograpliic transmission means for hand writing, drawing, and the like, comprising, a single feeling pointer, a plurality ot relays connected )for operation by the single feeling pointer, a partially conducting support over which the pointer is movable and containing the object to be transmitted, 'contacting means arranged to electrically connect the relays with the pointer, and means controlled by the relays for producing a record, and separate contact elements on the contacting means so that the eeler engages withl the object to be transmitted and with thepartially conducting support' thereof, a plurality of times in succession, for the production of a record which is the combination with the relays -of the lines from. the separate contact elements to the trically interconnected conducting scents relays.

3. 'lelautographic transmission meansfoto#y hand writing, drawing, and the' like, coni- .prisin'g, a single feeling pointer, 'a plurality of relays connected for operation by they'. single feeling pointer, a partially conducting support over which the pointer is movable and containing the object to be transmitted,

contacting means arranged toI electrically connect the relays with the pointer, and

Imeans controlled by the relays forv producing a record, and separate contact elements on the contacting means so that the eeler engages `with the object to be' transmitted and `with the partially conducting support thereof, a plurality of. times in succession, for the production of a recordvwhich is the combination with the relays of the lines from the separate contact elements to the relays, the partially conducting support comprising, a Bakevvell cylinder bearing the object to be transm1tted iny non-conducting *materiaL l 1 transmitted', contacting 'means arranged to electrically connect the relays `with the,

pointer, and means controlled by the relays for producing a record, the feeling pointer and the support vbeing movable in relation to each other, the contacting means including, a rotatable contact plate electrically connected to the pointer, a plurality of staggered electrically interconnected conductingy support containing the object to be trans mitted, contacting means arranged to elec' trically connect the relays with .the pointer, and means controlled by the relays for producing a record, the feeling pointer and the support being movable in relation to each other, the contacting means including, acrotatable contact plate electrically connected to the pointer, a plurality of staggeredelecen ',the plate for selectively placing the relays-'IY iii-operation and an electrically insulated segment on the plate. $6. -'lelautograhic transmission 'means for hand writing, rawing, and the like, comprising, a single feeling pointerfa plurality of relavs connected for operation by the singlerleeling pointer, a pxartiallyconducting su port containingft e object to be transmitted, contacting means arranged to electrically connect the relays with 'the Cpointer, and means controlled by the relays for producingva record, the -feeling pointer and the support being movable in relation to each other, the contacting means including, a rotatable contact plate .electrically connected to the pointer, a plurality of stag gered electrically interconnected conducting segments on the plate for selectively placing the relays in operation and an electrically insulated segment on the plate, a second contact plate connected in parallel with the first contact plate, and provided at the point corrponding to the insulated segment, with telegraph operatin d contacts.

.ln testimony whereo I have signed my name this 23rd day ofJanuary, 1924. f

u ARTHUR KORN. 

